
What is a blackening chemical?
- A blackening chemical is a solution used to create a black oxide layer on the surface of metals such as steel, stainless steel, copper, and brass. This chemical process, often called black oxide treatment or blackening, forms a thin, black-colored conversion coating on the metal.
* There are two main types of blackening processes:
1. Hot blackening (performed at high temperatures, ~140°C)
2. Cold blackening (room-temperature formulations for smaller-scale or less industrial settings)
- Blackening is widely used in automotive, firearms, tools, hardware, aerospace, and decorative metal finishing to enhance both appearance and performance. # blackening chemical Manufacturer.